Blain Air Permeability Apparatus

Blain Air Permeability Apparatus

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Blain Air Permeability Apparatus

Price 100 INR/ Piece

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MOQ : 1 Piece

Blain Air Permeability Apparatus Specification

Port Size
Standard Capillary

Resolution
0.01 cm/g

Hardness
Robust Glass & Metal Construction

Mounting Type
Table Top

Number of Specimens
Single Test Per Operation

Features
Simple Operation, Sturdy Construction

Power Supply
Not Required (Manual)

Measuring Range
Specific Surface Area of Cement

Max Height
Approx. 300 mm

Temperature
Room Temperature (20C-25C)

Test Range
Up to 10000 cm/g

Specimen Size
6.5 g Cement Sample

Usage
Cement Testing Equipment

Automation Grade
Manual

Gas Pressure
Atmospheric Pressure

Application
Cement Testing Equipment

Product Type
Blain Air Permeability Apparatus

Response Time
Immediate

Accuracy
1%

Display Type
Manual Reading

Equipment Type
Blain Air Permeability Apparatus

Humidity
Standard Laboratory Conditions

Capacity
1 Test Per Operation

Machine Weight
Approx. 1.5 kg

Test Speed
Manual Operation

Test Width
Standard Lab Bench

Control Mode
Manual

Blain Air Permeability Apparatus Trade Information

Minimum Order Quantity
1 Piece

Supply Ability
100 Pieces Per Week

Delivery Time
1 Week

Sample Available
Yes

Sample Policy
Sample costs shipping and taxes has to be paid by the buyer

Packaging Details
carton box, export quality also available

Main Domestic Market
All India

Certifications
ISO 9001, 14001 ,CE

About Blain Air Permeability Apparatus

Blain Air Permeability Apparatus: MTCT-03

The Blaine air permeability apparatus is used to determine the fineness of Portland cement in terms of the specific surface expressed as total surface area in square centimeters per gram of cement. The Blaine apparatus draws a defined volume of air through a prepared bed of cement of defined porosity.

The Blaine air-permeability apparatus consists essentially of a means of drawing a definite quantity of air through a prepared bed of cement of definite porosity. The number and size of the pores in a prepared bed of definite porosity is a function of the size of the particles and determines the rate of airflow through the bed. The apparatus illustrated.

Technical Specification

Fineness of cement has a great effect on the rate of hydration and hence the rate of gain of strength.
Fineness of cement increases the rate of evolution of heat.
Finer cement offers a great surface area for hydration and hence faster the development of strength.
Increase in fineness of cement also increases the drying shrinkage of concrete and hence creates cracks in structures.
Excessive fineness requirement increases cost of grinding.
Excessive fine cement requires more water for hydration, resulting reduced strength and durability.
Fineness of cement affects properties like gypsum requirement, workability of fresh concrete & long term behavior of structure.
Coarse cement particles settle down in concrete which causes bleeding.
Approximately 95% of cement particles are smaller than 45 micrometers, with the average particle around 15 micrometers.
In the early 1900s, cement fineness was expressed as the mass of cement per fractional size (percent weight retained on specific sieve sizes). Now a days fineness is usually measured by the Blaine air-permeability test that indirectly measures the surface area of the cement particles per unit mass.
Cements with finer particles have more surface area in m2 per kg of cement.

Reliable Cement Fineness Testing

The Blain Air Permeability Apparatus provides accurate measurement of cements specific surface area, supporting quality assurance in construction projects. Manual operation makes it accessible, while robust glass and metal components ensure durability and longevity, even with frequent use. Its compliance with IS: 4031 and ASTM C204 standards guarantees dependable results for laboratories and industry experts.

Simple and Efficient Manual Operation

No power supply is required for operation, making this apparatus practical in any laboratory setting. Immediate response time and easy-to-read manual display enable technicians to perform tests swiftly and precisely. Its compact, table-top design and feature-rich package ensure smooth workflow and convenience for single-specimen tests.

FAQs of Blain Air Permeability Apparatus:

Q: How does the Blain Air Permeability Apparatus measure cement fineness?

A: This apparatus determines the specific surface area of cement by measuring the rate at which air passes through a compacted cement sample under atmospheric pressure. The reading is taken manually from the U-tube manometer, providing reliable results within a fineness range of 200010000 cm/g.

Q: What materials are used in the construction of this equipment?

A: The Blain Air Permeability Apparatus is constructed using robust borosilicate glass and non-corrosive metal, ensuring durability, chemical resistance, and stable performance in standard laboratory conditions.

Q: When should I use this apparatus for cement testing?

A: It is typically used during quality control phases in cement production or construction projects, whenever a precise assessment of cement fineness is required to meet industry standards set by IS: 4031 and ASTM C204.

Q: Where is the Blain Air Permeability Apparatus best utilized?

A: This equipment is ideally mounted on a laboratory table or bench, in settings such as research labs, manufacturing facilities, and construction sites with standard laboratory conditions (2025C, atmospheric pressure).

Q: What is the process for operating the Blain Air Permeability Apparatus?

A: To operate, place a 6.5 g cement specimen in the container, assemble the flask and manometer, and use the rubber bulb to pass air through. The change in manometer reading is timed with the stopwatch, and the result gives the specific surface area of the sample.

Q: How is the equipments usage beneficial for cement testing?

A: Its manual, power-free operation and immediate response facilitate fast and accurate cement fineness readings. Durable materials and precision construction ensure repeated, trustworthy results, supporting industry compliance and product reliability for distributors, manufacturers, and traders.

Blain Air Permeability Apparatus

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